A turbocharger housing structure

Abstract

This utility model discloses a turbocharger housing structure, including a housing. An intake flange is fixedly connected to the intake of the housing. An installation groove is formed on the side of the intake flange away from the housing. A sealing gasket is installed inside the installation groove. A retaining frame moves left and right on the side of the sealing gasket closest to the intake flange. Fixing blocks are provided on all four sides of the side of the intake flange closest to the housing. Each of the four fixing blocks has a retaining mechanism for stopping the sealing gasket by the retaining frame. This turbocharger housing structure, through the cooperation of the retaining mechanism and spring, achieves dynamic compensation for pipeline vibration and thermal expansion and contraction displacement, preventing seal failure due to dynamic changes in operating conditions and ensuring high airtightness and the reliability of the engine turbocharging system. Furthermore, the design of the turntable and threaded rod allows operators to easily adjust the clamping force of the retaining frame on the sealing gasket, adapting to different installation scenarios, reducing maintenance difficulty, and improving practicality and maintainability.

Description

Technical Field

[0001] This utility model relates to the field of turbocharger technology, and in particular to a turbocharger housing structure. Background Technology

[0002] As a key component for improving engine power performance, the sealing of the turbocharger's intake connection has a significant impact on boosting efficiency and engine reliability. During vehicle operation, the engine compartment experiences complex conditions such as vibration and temperature changes (e.g., thermal expansion and contraction). The connection between the traditional turbocharger's intake flange and external piping often suffers from a simple sealing structure (e.g., a single gasket seal), making it difficult to withstand long-term seal loosening caused by vibration and seal failure due to temperature cycling. This can lead to foreign object intrusion, airflow leakage, reduced boosting efficiency, and even affect the normal operation of the engine.

[0003] Existing sealing solutions mostly rely on static sealing structures and lack the ability to actively compensate for dynamic operating conditions (vibration, thermal deformation). When the pipeline is displaced due to vibration or temperature, the gasket is prone to detach from the flange face, making it impossible to continuously guarantee high airtightness. At the same time, the sealing pressure is inconvenient to adjust and difficult to adapt to changes in operating conditions, resulting in high maintenance difficulty.

[0004] Therefore, we propose a turbocharger housing structure. Utility Model Content

[0005] The main objective of this invention is to provide a turbocharger housing structure that prevents sealing failure at the turbocharger housing intake connection due to complex operating conditions (vibration, thermal expansion and contraction, etc.), which could lead to foreign object intrusion, airflow leakage, reduced boosting efficiency, and disruption of engine operation. This invention also addresses the shortcomings of existing static sealing structures, such as difficulty in dynamic compensation, inconvenient sealing pressure adjustment, and high maintenance difficulty. Therefore, it improves the sealing reliability, adaptability, and maintainability of the turbocharger in complex environments, ensuring long-term stable and efficient operation of the engine boosting system. This effectively solves the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A turbocharger housing structure includes a housing, an intake flange fixedly connected to the intake of the housing, an installation groove provided on the side of the intake flange away from the housing, a sealing gasket installed inside the installation groove, a stop frame that moves left and right on the side of the sealing gasket near the intake flange, and four fixing blocks provided on the four sides of the side of the intake flange near the housing, each of the four fixing blocks having a stop mechanism for stopping the sealing gasket by the stop frame.

[0008] By adopting the above technical solution, when it is necessary to install the turbocharger intake system, the gasket is first embedded into the mounting groove of the intake flange. After the connection is completed, the stop mechanism drives the stop frame to press the gasket tightly, ensuring the sealing performance when the intake flange is connected to the external pipeline.

[0009] Furthermore, the air intake flange is provided with a sliding groove at the connection between it and the four fixed blocks. The abutment mechanism includes a fixed cylinder fixedly connected to the sliding groove in the fixed block. A threaded rod is threadedly connected to the inner side of the fixed cylinder. One end of the threaded rod extends to the outside and is fixedly connected to a turntable.

[0010] By adopting the above technical solution, if it is necessary to adjust the clamping force of the abutment frame on the sealing gasket, the operator rotates the turntable. Because the threaded rod is threadedly connected to the fixed cylinder, the turntable drives the threaded rod to move along the axis of the fixed cylinder. The threaded rod can extend / retract relative to the fixed cylinder, providing a power basis for subsequently pushing the abutment frame.

[0011] Furthermore, a sliding rod is slidably connected inside the fixed cylinder, and a limit plate is fixedly connected to one end of the sliding rod near the threaded rod.

[0012] By adopting the above technical solution, when the threaded rod is pushed into the fixed cylinder, the end of the threaded rod contacts the limiting plate and pushes the slide rod to slide.

[0013] Furthermore, the side of the limiting plate away from the slide rod abuts against the end of the threaded rod away from the turntable, and the inner wall of the fixed cylinder is provided with a limiting groove that slides with the limiting plate.

[0014] By adopting the above technical solution, the limiting plate moves along the limiting groove on the inner wall of the fixed cylinder. The limiting groove restricts the circumferential rotation of the limiting plate, ensuring the linear movement of the slide rod and ensuring that the slide rod stably transmits the thrust of the threaded rod.

[0015] Furthermore, a sliding cylinder is slidably connected to the outside of the sliding rod, and a spring is sleeved on the outside of the sliding rod, with the spring connecting the fixed cylinder and the sliding cylinder.

[0016] By adopting the above technical solution, the slide rod pushes the slide cylinder to move towards the mounting groove, while compressing the spring; the spring can absorb the impact force when the threaded rod is pushed forward. The spring connects the fixed cylinder and the slide cylinder, providing elastic preload, avoiding excessive pressure at the moment of impact with the frame that could damage the sealing gasket, and maintaining a stable clamping force thereafter.

[0017] Furthermore, the end of the slide cylinder away from the spring extends into the mounting groove and is fixedly connected to the side of the abutment frame away from the sealing gasket.

[0018] By adopting the above technical solution, the slide cylinder drives the abutment frame to slide in the installation groove. The abutment frame fits against the sealing gasket on the side away from the housing. The abutment frame gradually squeezes the sealing gasket, so that it tightly fills the gap between the air inlet flange and the external pipeline. After installation, the abutment frame continues to keep the sealing gasket pressed by the elastic force of the spring, ensuring long-term sealing at the connection.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] (1) This utility model discloses a turbocharger housing structure, which achieves dynamic compensation for pipeline vibration and thermal expansion and contraction displacement through the cooperation of a stop mechanism and an elastic component (spring). When the pipeline undergoes slight displacement due to vibration or temperature changes during vehicle operation, the spring can absorb the impact force and provide continuous elastic preload, pushing the stop frame to always press the sealing gasket tightly, ensuring that the sealing gasket fits tightly against the intake flange and external pipeline, effectively avoiding sealing failure caused by dynamic changes in operating conditions, ensuring the turbocharger's long-term stable high airtightness in complex environments, and improving the reliability of the engine turbocharging system.

[0021] (2) This utility model provides a turbocharger housing structure. With the help of a turntable and threaded rod design, the operator can easily adjust the clamping force of the abutment frame on the sealing gasket. During installation, the threaded rod can be precisely controlled by rotating the turntable according to the pipeline connection requirements and the characteristics of the sealing gasket, thereby adjusting the pressure of the abutment frame on the sealing gasket to adapt to different installation scenarios. During maintenance, if the sealing performance needs to be adjusted, there is no need to disassemble the complex structure. It can be quickly adjusted by simply rotating the turntable, reducing the maintenance difficulty and improving the practicality and maintainability of the turbocharger assembly. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of a turbocharger housing structure according to the present invention.

[0023] Figure 2 This is a cross-sectional view of the intake flange of a turbocharger housing structure according to this utility model.

[0024] Figure 3 This utility model relates to a turbocharger housing structure. Figure 2 Enlarged view of point A in the middle.

[0025] Figure 4 This is a schematic diagram of the abutment mechanism of a turbocharger housing structure according to the present invention.

[0026] In the diagram: 1. Housing; 2. Inlet flange; 3. Mounting groove; 4. Sealing gasket; 5. Support frame; 6. Fixing block; 7. Stopping mechanism; 8. Slide groove; 9. Fixing cylinder; 10. Threaded rod; 11. Turntable; 12. Slide rod; 13. Limiting plate; 14. Limiting groove; 15. Slide cylinder; 16. Spring. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0028] To prevent sealing failure at the turbocharger housing intake connection due to complex operating conditions (vibration, thermal expansion and contraction, etc.), which could lead to foreign object intrusion, airflow leakage, reduced boost efficiency, and disruption of engine operation, this solution addresses the shortcomings of existing static sealing structures, such as difficulty in dynamic compensation, inconvenient sealing pressure adjustment, and high maintenance complexity. This aims to improve the turbocharger's sealing reliability, adaptability, and maintainability under complex environments, ensuring the long-term stable and efficient operation of the engine's boost system. Figure 1 , Figure 2 , Figure 3 , Figure 2 , Figure 4 As shown, a turbocharger housing structure includes a housing 1. An intake flange 2 is fixedly connected to the intake of the housing 1. An installation groove 3 is provided on the side of the intake flange 2 away from the housing 1. A sealing gasket 4 is installed inside the installation groove 3. A retaining frame 5 is movable left and right on the side of the sealing gasket 4 near the intake flange 2. Fixing blocks 6 are provided on all four sides of the side of the intake flange 2 near the housing 1. Each of the four fixing blocks 6 is provided with a retaining mechanism 7 for abutting the sealing gasket 4 through the retaining frame 5.

[0029] When using the turbocharger intake system, first insert the sealing gasket 4 into the mounting groove 3 of the intake flange 2. After the connection is completed, drive the abutment frame 5 through the abutment mechanism 7 to press the sealing gasket 4 to ensure the sealing performance when the intake flange is connected to the external pipeline.

[0030] For example, such as Figure 3 , Figure 4 As shown, the present invention also includes a sliding groove 8 provided inside the connection between the air intake flange 2 and the four fixed blocks 6. The abutting mechanism 7 includes a fixed cylinder 9 fixedly connected inside the sliding groove 8 in the fixed block 6. A threaded rod 10 is threadedly connected to the inner side of the fixed cylinder 9. One end of the threaded rod 10 extends to the outside and is fixedly connected to a turntable 11.

[0031] When in use, if it is necessary to adjust the clamping force of the abutment frame 5 on the sealing gasket 4, the operator rotates the turntable 11. Because the threaded rod 10 is threadedly connected to the fixed cylinder 9, the turntable drives the threaded rod to move along the axis of the fixed cylinder. The threaded rod can extend / retract relative to the fixed cylinder, providing a power basis for subsequently pushing the abutment frame.

[0032] For example, such as Figure 4As shown, the present invention also includes a sliding rod 12 slidably connected inside the fixed cylinder 9, and a limiting plate 13 is fixedly connected to one end of the sliding rod 12 near the threaded rod 10.

[0033] When in use, as the threaded rod 10 is pushed into the fixed cylinder 9, the end of the threaded rod contacts the limiting plate 13 and pushes the slide rod 12 to slide.

[0034] For example, such as Figure 4 As shown, the present invention also includes a limiting plate 13 on the side away from the slide bar 12 that abuts against the end of the threaded rod 10 away from the turntable 11, and a limiting groove 14 is provided on the inner wall of the fixed cylinder 9 to slide and cooperate with the limiting plate 13.

[0035] During use, the limiting plate 13 moves along the limiting groove 14 on the inner wall of the fixed cylinder. The limiting groove restricts the circumferential rotation of the limiting plate, ensuring the linear movement of the slide rod and ensuring that the slide rod stably transmits the thrust of the threaded rod.

[0036] For example, such as Figure 4 As shown, the present invention also includes a slide cylinder 15 slidably connected to the outside of the slide rod 12, and a spring 16 sleeved on the outside of the slide rod 12, the spring 16 being connected between the fixed cylinder 9 and the slide cylinder 15.

[0037] In use, the slide rod 12 pushes the slide cylinder 15 to move towards the mounting groove 3, while compressing the spring 16. The spring can absorb the impact force when the threaded rod is pushed forward. The spring connects the fixed cylinder and the slide cylinder, providing elastic preload to prevent excessive pressure on the frame 5 from damaging the sealing gasket 4, and to maintain stable clamping force in the future.

[0038] For example, such as Figure 3 , Figure 4 As shown, the present invention also includes an end of the slide cylinder 15 away from the spring 16 extending into the mounting groove 3 and being fixedly connected to the side of the abutment frame 5 away from the sealing gasket 4.

[0039] During use, the slide cylinder 15 drives the abutment frame 5 to slide in the mounting groove 3. The abutment frame adheres to the side of the sealing gasket away from the housing. The abutment frame gradually squeezes the sealing gasket 4, making it tightly fill the gap between the air inlet flange 2 and the external pipeline. After installation, the abutment frame continues to keep the sealing gasket pressed by the elastic force of the spring, ensuring a long-term seal at the connection.

[0040] It should be noted that this utility model is a turbocharger housing structure. When installing the turbocharger intake connection, firstly, the sealing gasket 4 is placed into the mounting groove 3 of the intake flange 2. After the connection is completed, the turntable 11 is rotated to push the threaded rod 10 forward, which in turn pushes the limiting plate 13 and the sliding rod 12, allowing the sliding cylinder 15 to move the abutment frame 5. The abutment frame 5 compresses the sealing gasket 4, and the spring 16 provides elastic pre-tightening, which can compensate for pipeline vibration and displacement caused by thermal expansion and contraction. Finally, the external pipeline is fixed to the intake flange 2 with bolts. Because the sealing gasket has been pre-compressed by the abutment frame, a high airtight connection is achieved, effectively preventing foreign objects from entering and airflow leakage.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A turbocharger housing structure, comprising a housing (1), characterized in that, An air inlet flange (2) is fixedly connected to the air inlet of the housing (1). An installation groove (3) is provided on the side of the air inlet flange (2) away from the housing (1). A sealing gasket (4) is installed inside the installation groove (3). A stop frame (5) moves left and right on the side of the sealing gasket (4) close to the air inlet flange (2). Fixing blocks (6) are provided on all four sides of the side of the air inlet flange (2) close to the housing (1). Each of the four fixing blocks (6) is provided with a stop mechanism (7) for stopping the sealing gasket (4) by the stop frame (5).

2. The turbocharger housing structure according to claim 1, characterized in that: The air intake flange (2) is provided with a sliding groove (8) at the connection between it and the four fixed blocks (6). The stop mechanism (7) includes a fixed cylinder (9) fixedly connected inside the sliding groove (8) in the fixed block (6). The inner side of the fixed cylinder (9) is threaded with a threaded rod (10). One end of the threaded rod (10) extends to the outside and is fixedly connected to a turntable (11).

3. A turbocharger housing structure according to claim 2, characterized in that: The fixed cylinder (9) is slidably connected to a slide rod (12), and a limit plate (13) is fixedly connected to one end of the slide rod (12) near the threaded rod (10).

4. A turbocharger housing structure according to claim 3, characterized in that: The side of the limiting plate (13) away from the slide bar (12) abuts against the end of the threaded rod (10) away from the turntable (11), and the inner wall of the fixed cylinder (9) is provided with a limiting groove (14) that slides with the limiting plate (13).

5. A turbocharger housing structure according to claim 4, characterized in that: The slide rod (12) is slidably connected to the outside of the slide cylinder (15), and a spring (16) is sleeved on the outside of the slide rod (12). The spring (16) is connected between the fixed cylinder (9) and the slide cylinder (15).

6. A turbocharger housing structure according to claim 5, characterized in that: The end of the slide (15) away from the spring (16) extends into the mounting groove (3) and is fixedly connected to the side of the abutment frame (5) away from the sealing gasket (4).

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